(5-√7) (5-√7) what is the answer
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Answered by
7
Answer:
18
Step-by-step explanation:
(5-√7)(5+√7)
{applying (a+b)(a-b)= a²- b²}
(5)²-(√7)²
25-7
=18
Answered by
55
(5-√7) (5-√7)
=(5-√7)^2
(by using the identity (a-b)^2=a^2 + b^2 - 2ab)
=25+7-2x5x√7
=5.54248688935
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